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Python: Remove the ANSI escape sequences from a string

Python Regular Expression: Exercise-45 with Solution

Write a Python program to remove the ANSI escape sequences from a string.

Sample Solution:-

Python Code:

import re
text = "\t\u001b[0;35mgoogle.com\u001b[0m \u001b[0;36m216.58.218.206\u001b[0m"
print("Original Text: ",text)
reaesc = re.compile(r'\x1b[^m]*m')
new_text = reaesc.sub('', text)
print("New Text: ",new_text)

Sample Output:

Original Text:          google.com 216.58.218.206                                                             
New Text:       google.com 216.58.218.206 

Flowchart:

Flowchart: Regular Expression - Remove the ANSI escape sequences from a string.

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Python: Tips of the Day

Getting the last element of a list:

some_list[-1] is the shortest and most Pythonic.

In fact, you can do much more with this syntax. The some_list[-n] syntax gets the nth-to-last element. So some_list[-1] gets the last element, some_list[-2] gets the second to last, etc, all the way down to some_list[-len(some_list)], which gives you the first element.

You can also set list elements in this way. For instance:

>>> some_list = [1, 2, 3]
>>> some_list[-1] = 5 # Set the last element
>>> some_list[-2] = 3 # Set the second to last element
>>> some_list
[1, 3, 5]

Note that getting a list item by index will raise an IndexError if the expected item doesn't exist. This means that some_list[-1] will raise an exception if some_list is empty, because an empty list can't have a last element.

Ref: https://bit.ly/3d8TfFP